Cooking chicken breast on a Traeger grill at 225 degrees Fahrenheit typically takes around 1.5 to 2 hours. However, the exact time may vary depending on the size and thickness of the chicken breasts, as well as your personal preference for the level of doneness.
It’s important to use a meat thermometer to check the internal temperature of the chicken breast, which should reach at least 165 degrees Fahrenheit for safe consumption. Additionally, you may want to periodically check the chicken breasts for browning or charring, and adjust the cooking time or temperature as needed to achieve the desired level of doneness and appearance.